Dennis O’Bryan

Dennis O'Bryan

Client Service Associate
As a Client Service Associate at Gresham, Dennis serves as a liaison between Gresham’s clients and Gresham as a firm. From day-to-day inquiries to long-term strategies, Dennis’ focus is to help our clients achieve their financial goals while letting them focus on what is most important to them.

Dennis joined Gresham as an Associate in 2026. He works directly with our primary Advisor team to provide ultra-high-net-worth families with comprehensive wealth management solutions.

Prior to joining Gresham, Dennis worked at Signature Chicago Wealth Management for four years, most recently as an Investment Officer, where he worked directly with families to develop and implement long-term investment strategies.

Outside of work, Dennis enjoys traveling, spending time with friends and family, exploring Chicago neighborhoods, and faithfully supporting the Fighting Irish.

Education Background
  • B.B.A., Finance, University of Notre Dame